It's no secret that exercise plays an essential role in the prevention of many diseases, including Parkinson's disease. 

But there's one beloved winter activity that scientists believe could be particularly beneficial in delaying the neurodegenerative condition.

A 2020 Swedish study found that cross-country skiers have a 30 percent lower risk of developing Parkinson's disease. The study followed nearly 200,000 skiers participating in the Vasaloppet, a 90-kilometre cross-country ski race in Sweden. 

Benefits may be linked to an increased "motor reserve," a concept that suggests that physical activity can slow the onset of motor symptoms, even in the event of brain damage caused by the disease.

Other exercises like running, dancing, yoga, and weight training are also proven to reduce the risk and symptoms of Parkinson's. This is largely because exercise can help protect brain cells by promoting the growth new neurons and improving the function of dopamine pathways, both of which are affected by the disease.

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